798 lines
21 KiB
C++
798 lines
21 KiB
C++
//-------------------------------------------------------------------------------------
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// DirectXTexImage.cpp
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//
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// DirectX Texture Library - Image container
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License.
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//
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// http://go.microsoft.com/fwlink/?LinkId=248926
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//-------------------------------------------------------------------------------------
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#include "directxtexp.h"
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namespace DirectX
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{
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extern bool _CalculateMipLevels(_In_ size_t width, _In_ size_t height, _Inout_ size_t& mipLevels);
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extern bool _CalculateMipLevels3D(_In_ size_t width, _In_ size_t height, _In_ size_t depth, _Inout_ size_t& mipLevels);
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extern bool _IsAlphaAllOpaqueBC(_In_ const Image& cImage);
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}
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using namespace DirectX;
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//-------------------------------------------------------------------------------------
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// Determines number of image array entries and pixel size
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//-------------------------------------------------------------------------------------
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_Use_decl_annotations_
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void DirectX::_DetermineImageArray(
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const TexMetadata& metadata,
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DWORD cpFlags,
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size_t& nImages,
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size_t& pixelSize)
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{
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assert(metadata.width > 0 && metadata.height > 0 && metadata.depth > 0);
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assert(metadata.arraySize > 0);
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assert(metadata.mipLevels > 0);
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size_t _pixelSize = 0;
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size_t _nimages = 0;
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switch (metadata.dimension)
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{
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case TEX_DIMENSION_TEXTURE1D:
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case TEX_DIMENSION_TEXTURE2D:
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for (size_t item = 0; item < metadata.arraySize; ++item)
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{
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size_t w = metadata.width;
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size_t h = metadata.height;
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for (size_t level = 0; level < metadata.mipLevels; ++level)
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{
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size_t rowPitch, slicePitch;
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ComputePitch(metadata.format, w, h, rowPitch, slicePitch, cpFlags);
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_pixelSize += slicePitch;
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++_nimages;
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if (h > 1)
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h >>= 1;
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if (w > 1)
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w >>= 1;
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}
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}
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break;
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case TEX_DIMENSION_TEXTURE3D:
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{
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size_t w = metadata.width;
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size_t h = metadata.height;
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size_t d = metadata.depth;
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for (size_t level = 0; level < metadata.mipLevels; ++level)
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{
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size_t rowPitch, slicePitch;
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ComputePitch(metadata.format, w, h, rowPitch, slicePitch, cpFlags);
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for (size_t slice = 0; slice < d; ++slice)
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{
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_pixelSize += slicePitch;
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++_nimages;
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}
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if (h > 1)
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h >>= 1;
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if (w > 1)
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w >>= 1;
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if (d > 1)
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d >>= 1;
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}
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}
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break;
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default:
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assert(false);
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break;
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}
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nImages = _nimages;
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pixelSize = _pixelSize;
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}
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//-------------------------------------------------------------------------------------
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// Fills in the image array entries
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//-------------------------------------------------------------------------------------
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_Use_decl_annotations_
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bool DirectX::_SetupImageArray(
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uint8_t *pMemory,
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size_t pixelSize,
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const TexMetadata& metadata,
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DWORD cpFlags,
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Image* images,
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size_t nImages)
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{
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assert(pMemory);
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assert(pixelSize > 0);
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assert(nImages > 0);
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if (!images)
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return false;
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size_t index = 0;
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uint8_t* pixels = pMemory;
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const uint8_t* pEndBits = pMemory + pixelSize;
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switch (metadata.dimension)
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{
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case TEX_DIMENSION_TEXTURE1D:
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case TEX_DIMENSION_TEXTURE2D:
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if (metadata.arraySize == 0 || metadata.mipLevels == 0)
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{
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return false;
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}
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for (size_t item = 0; item < metadata.arraySize; ++item)
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{
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size_t w = metadata.width;
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size_t h = metadata.height;
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for (size_t level = 0; level < metadata.mipLevels; ++level)
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{
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if (index >= nImages)
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{
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return false;
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}
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size_t rowPitch, slicePitch;
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ComputePitch(metadata.format, w, h, rowPitch, slicePitch, cpFlags);
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images[index].width = w;
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images[index].height = h;
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images[index].format = metadata.format;
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images[index].rowPitch = rowPitch;
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images[index].slicePitch = slicePitch;
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images[index].pixels = pixels;
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++index;
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pixels += slicePitch;
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if (pixels > pEndBits)
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{
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return false;
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}
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if (h > 1)
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h >>= 1;
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if (w > 1)
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w >>= 1;
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}
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}
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return true;
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case TEX_DIMENSION_TEXTURE3D:
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{
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if (metadata.mipLevels == 0 || metadata.depth == 0)
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{
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return false;
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}
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size_t w = metadata.width;
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size_t h = metadata.height;
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size_t d = metadata.depth;
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for (size_t level = 0; level < metadata.mipLevels; ++level)
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{
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size_t rowPitch, slicePitch;
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ComputePitch(metadata.format, w, h, rowPitch, slicePitch, cpFlags);
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for (size_t slice = 0; slice < d; ++slice)
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{
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if (index >= nImages)
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{
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return false;
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}
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// We use the same memory organization that Direct3D 11 needs for D3D11_SUBRESOURCE_DATA
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// with all slices of a given miplevel being continuous in memory
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images[index].width = w;
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images[index].height = h;
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images[index].format = metadata.format;
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images[index].rowPitch = rowPitch;
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images[index].slicePitch = slicePitch;
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images[index].pixels = pixels;
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++index;
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pixels += slicePitch;
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if (pixels > pEndBits)
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{
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return false;
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}
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}
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if (h > 1)
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h >>= 1;
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if (w > 1)
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w >>= 1;
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if (d > 1)
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d >>= 1;
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}
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}
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return true;
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default:
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return false;
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}
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}
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//=====================================================================================
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// ScratchImage - Bitmap image container
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//=====================================================================================
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ScratchImage& ScratchImage::operator= (ScratchImage&& moveFrom) noexcept
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{
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if (this != &moveFrom)
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{
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Release();
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m_nimages = moveFrom.m_nimages;
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m_size = moveFrom.m_size;
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m_metadata = moveFrom.m_metadata;
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m_image = moveFrom.m_image;
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m_memory = moveFrom.m_memory;
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moveFrom.m_nimages = 0;
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moveFrom.m_size = 0;
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moveFrom.m_image = nullptr;
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moveFrom.m_memory = nullptr;
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}
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return *this;
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}
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//-------------------------------------------------------------------------------------
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// Methods
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//-------------------------------------------------------------------------------------
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_Use_decl_annotations_
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HRESULT ScratchImage::Initialize(const TexMetadata& mdata, DWORD flags)
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{
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if (!IsValid(mdata.format))
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return E_INVALIDARG;
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if (IsPalettized(mdata.format))
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return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
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size_t mipLevels = mdata.mipLevels;
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switch (mdata.dimension)
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{
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case TEX_DIMENSION_TEXTURE1D:
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if (!mdata.width || mdata.height != 1 || mdata.depth != 1 || !mdata.arraySize)
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return E_INVALIDARG;
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if (!_CalculateMipLevels(mdata.width, 1, mipLevels))
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return E_INVALIDARG;
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break;
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case TEX_DIMENSION_TEXTURE2D:
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if (!mdata.width || !mdata.height || mdata.depth != 1 || !mdata.arraySize)
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return E_INVALIDARG;
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if (mdata.IsCubemap())
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{
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if ((mdata.arraySize % 6) != 0)
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return E_INVALIDARG;
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}
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if (!_CalculateMipLevels(mdata.width, mdata.height, mipLevels))
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return E_INVALIDARG;
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break;
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case TEX_DIMENSION_TEXTURE3D:
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if (!mdata.width || !mdata.height || !mdata.depth || mdata.arraySize != 1)
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return E_INVALIDARG;
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if (!_CalculateMipLevels3D(mdata.width, mdata.height, mdata.depth, mipLevels))
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return E_INVALIDARG;
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break;
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default:
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return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
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}
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Release();
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m_metadata.width = mdata.width;
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m_metadata.height = mdata.height;
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m_metadata.depth = mdata.depth;
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m_metadata.arraySize = mdata.arraySize;
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m_metadata.mipLevels = mipLevels;
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m_metadata.miscFlags = mdata.miscFlags;
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m_metadata.miscFlags2 = mdata.miscFlags2;
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m_metadata.format = mdata.format;
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m_metadata.dimension = mdata.dimension;
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size_t pixelSize, nimages;
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_DetermineImageArray(m_metadata, flags, nimages, pixelSize);
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m_image = new (std::nothrow) Image[nimages];
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if (!m_image)
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return E_OUTOFMEMORY;
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m_nimages = nimages;
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memset(m_image, 0, sizeof(Image) * nimages);
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m_memory = static_cast<uint8_t*>(_aligned_malloc(pixelSize, 16));
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if (!m_memory)
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{
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Release();
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return E_OUTOFMEMORY;
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}
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m_size = pixelSize;
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if (!_SetupImageArray(m_memory, pixelSize, m_metadata, flags, m_image, nimages))
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{
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Release();
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return E_FAIL;
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}
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return S_OK;
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}
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_Use_decl_annotations_
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HRESULT ScratchImage::Initialize1D(DXGI_FORMAT fmt, size_t length, size_t arraySize, size_t mipLevels, DWORD flags)
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{
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if (!length || !arraySize)
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return E_INVALIDARG;
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// 1D is a special case of the 2D case
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HRESULT hr = Initialize2D(fmt, length, 1, arraySize, mipLevels, flags);
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if (FAILED(hr))
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return hr;
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m_metadata.dimension = TEX_DIMENSION_TEXTURE1D;
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return S_OK;
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}
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_Use_decl_annotations_
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HRESULT ScratchImage::Initialize2D(DXGI_FORMAT fmt, size_t width, size_t height, size_t arraySize, size_t mipLevels, DWORD flags)
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{
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if (!IsValid(fmt) || !width || !height || !arraySize)
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return E_INVALIDARG;
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if (IsPalettized(fmt))
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return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
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if (!_CalculateMipLevels(width, height, mipLevels))
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return E_INVALIDARG;
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Release();
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m_metadata.width = width;
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m_metadata.height = height;
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m_metadata.depth = 1;
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m_metadata.arraySize = arraySize;
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m_metadata.mipLevels = mipLevels;
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m_metadata.miscFlags = 0;
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m_metadata.miscFlags2 = 0;
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m_metadata.format = fmt;
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m_metadata.dimension = TEX_DIMENSION_TEXTURE2D;
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size_t pixelSize, nimages;
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_DetermineImageArray(m_metadata, flags, nimages, pixelSize);
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m_image = new (std::nothrow) Image[nimages];
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if (!m_image)
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return E_OUTOFMEMORY;
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m_nimages = nimages;
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memset(m_image, 0, sizeof(Image) * nimages);
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m_memory = static_cast<uint8_t*>(_aligned_malloc(pixelSize, 16));
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if (!m_memory)
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{
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Release();
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return E_OUTOFMEMORY;
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}
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m_size = pixelSize;
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if (!_SetupImageArray(m_memory, pixelSize, m_metadata, flags, m_image, nimages))
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{
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Release();
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return E_FAIL;
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}
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return S_OK;
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}
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_Use_decl_annotations_
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HRESULT ScratchImage::Initialize3D(DXGI_FORMAT fmt, size_t width, size_t height, size_t depth, size_t mipLevels, DWORD flags)
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{
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if (!IsValid(fmt) || !width || !height || !depth)
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return E_INVALIDARG;
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if (IsPalettized(fmt))
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return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
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if (!_CalculateMipLevels3D(width, height, depth, mipLevels))
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return E_INVALIDARG;
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Release();
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m_metadata.width = width;
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m_metadata.height = height;
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m_metadata.depth = depth;
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m_metadata.arraySize = 1; // Direct3D 10.x/11 does not support arrays of 3D textures
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m_metadata.mipLevels = mipLevels;
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m_metadata.miscFlags = 0;
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m_metadata.miscFlags2 = 0;
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m_metadata.format = fmt;
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m_metadata.dimension = TEX_DIMENSION_TEXTURE3D;
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size_t pixelSize, nimages;
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_DetermineImageArray(m_metadata, flags, nimages, pixelSize);
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m_image = new (std::nothrow) Image[nimages];
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if (!m_image)
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{
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Release();
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return E_OUTOFMEMORY;
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}
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m_nimages = nimages;
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memset(m_image, 0, sizeof(Image) * nimages);
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m_memory = static_cast<uint8_t*>(_aligned_malloc(pixelSize, 16));
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if (!m_memory)
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{
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Release();
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return E_OUTOFMEMORY;
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}
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m_size = pixelSize;
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if (!_SetupImageArray(m_memory, pixelSize, m_metadata, flags, m_image, nimages))
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{
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Release();
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return E_FAIL;
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}
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return S_OK;
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}
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_Use_decl_annotations_
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HRESULT ScratchImage::InitializeCube(DXGI_FORMAT fmt, size_t width, size_t height, size_t nCubes, size_t mipLevels, DWORD flags)
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{
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if (!width || !height || !nCubes)
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return E_INVALIDARG;
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// A DirectX11 cubemap is just a 2D texture array that is a multiple of 6 for each cube
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HRESULT hr = Initialize2D(fmt, width, height, nCubes * 6, mipLevels, flags);
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if (FAILED(hr))
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return hr;
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m_metadata.miscFlags |= TEX_MISC_TEXTURECUBE;
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return S_OK;
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}
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_Use_decl_annotations_
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HRESULT ScratchImage::InitializeFromImage(const Image& srcImage, bool allow1D, DWORD flags)
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{
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HRESULT hr = (srcImage.height > 1 || !allow1D)
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? Initialize2D(srcImage.format, srcImage.width, srcImage.height, 1, 1, flags)
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: Initialize1D(srcImage.format, srcImage.width, 1, 1, flags);
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if (FAILED(hr))
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return hr;
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size_t rowCount = ComputeScanlines(srcImage.format, srcImage.height);
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if (!rowCount)
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return E_UNEXPECTED;
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const uint8_t* sptr = srcImage.pixels;
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if (!sptr)
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return E_POINTER;
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uint8_t* dptr = m_image[0].pixels;
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if (!dptr)
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return E_POINTER;
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size_t spitch = srcImage.rowPitch;
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size_t dpitch = m_image[0].rowPitch;
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size_t size = std::min<size_t>(dpitch, spitch);
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for (size_t y = 0; y < rowCount; ++y)
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{
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memcpy_s(dptr, dpitch, sptr, size);
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sptr += spitch;
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dptr += dpitch;
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}
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return S_OK;
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}
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_Use_decl_annotations_
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HRESULT ScratchImage::InitializeArrayFromImages(const Image* images, size_t nImages, bool allow1D, DWORD flags)
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{
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if (!images || !nImages)
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return E_INVALIDARG;
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DXGI_FORMAT format = images[0].format;
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size_t width = images[0].width;
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size_t height = images[0].height;
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for (size_t index = 0; index < nImages; ++index)
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{
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if (!images[index].pixels)
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return E_POINTER;
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if (images[index].format != format || images[index].width != width || images[index].height != height)
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{
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// All images must be the same format, width, and height
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return E_FAIL;
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}
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}
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HRESULT hr = (height > 1 || !allow1D)
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? Initialize2D(format, width, height, nImages, 1, flags)
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: Initialize1D(format, width, nImages, 1, flags);
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if (FAILED(hr))
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return hr;
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size_t rowCount = ComputeScanlines(format, height);
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if (!rowCount)
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return E_UNEXPECTED;
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for (size_t index = 0; index < nImages; ++index)
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{
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const uint8_t* sptr = images[index].pixels;
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if (!sptr)
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return E_POINTER;
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assert(index < m_nimages);
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uint8_t* dptr = m_image[index].pixels;
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if (!dptr)
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return E_POINTER;
|
|
|
|
size_t spitch = images[index].rowPitch;
|
|
size_t dpitch = m_image[index].rowPitch;
|
|
|
|
size_t size = std::min<size_t>(dpitch, spitch);
|
|
|
|
for (size_t y = 0; y < rowCount; ++y)
|
|
{
|
|
memcpy_s(dptr, dpitch, sptr, size);
|
|
sptr += spitch;
|
|
dptr += dpitch;
|
|
}
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
_Use_decl_annotations_
|
|
HRESULT ScratchImage::InitializeCubeFromImages(const Image* images, size_t nImages, DWORD flags)
|
|
{
|
|
if (!images || !nImages)
|
|
return E_INVALIDARG;
|
|
|
|
// A DirectX11 cubemap is just a 2D texture array that is a multiple of 6 for each cube
|
|
if ((nImages % 6) != 0)
|
|
return E_INVALIDARG;
|
|
|
|
HRESULT hr = InitializeArrayFromImages(images, nImages, false, flags);
|
|
if (FAILED(hr))
|
|
return hr;
|
|
|
|
m_metadata.miscFlags |= TEX_MISC_TEXTURECUBE;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
_Use_decl_annotations_
|
|
HRESULT ScratchImage::Initialize3DFromImages(const Image* images, size_t depth, DWORD flags)
|
|
{
|
|
if (!images || !depth)
|
|
return E_INVALIDARG;
|
|
|
|
DXGI_FORMAT format = images[0].format;
|
|
size_t width = images[0].width;
|
|
size_t height = images[0].height;
|
|
|
|
for (size_t slice = 0; slice < depth; ++slice)
|
|
{
|
|
if (!images[slice].pixels)
|
|
return E_POINTER;
|
|
|
|
if (images[slice].format != format || images[slice].width != width || images[slice].height != height)
|
|
{
|
|
// All images must be the same format, width, and height
|
|
return E_FAIL;
|
|
}
|
|
}
|
|
|
|
HRESULT hr = Initialize3D(format, width, height, depth, 1, flags);
|
|
if (FAILED(hr))
|
|
return hr;
|
|
|
|
size_t rowCount = ComputeScanlines(format, height);
|
|
if (!rowCount)
|
|
return E_UNEXPECTED;
|
|
|
|
for (size_t slice = 0; slice < depth; ++slice)
|
|
{
|
|
const uint8_t* sptr = images[slice].pixels;
|
|
if (!sptr)
|
|
return E_POINTER;
|
|
|
|
assert(slice < m_nimages);
|
|
uint8_t* dptr = m_image[slice].pixels;
|
|
if (!dptr)
|
|
return E_POINTER;
|
|
|
|
size_t spitch = images[slice].rowPitch;
|
|
size_t dpitch = m_image[slice].rowPitch;
|
|
|
|
size_t size = std::min<size_t>(dpitch, spitch);
|
|
|
|
for (size_t y = 0; y < rowCount; ++y)
|
|
{
|
|
memcpy_s(dptr, dpitch, sptr, size);
|
|
sptr += spitch;
|
|
dptr += dpitch;
|
|
}
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
void ScratchImage::Release()
|
|
{
|
|
m_nimages = 0;
|
|
m_size = 0;
|
|
|
|
if (m_image)
|
|
{
|
|
delete[] m_image;
|
|
m_image = nullptr;
|
|
}
|
|
|
|
if (m_memory)
|
|
{
|
|
_aligned_free(m_memory);
|
|
m_memory = nullptr;
|
|
}
|
|
|
|
memset(&m_metadata, 0, sizeof(m_metadata));
|
|
}
|
|
|
|
_Use_decl_annotations_
|
|
bool ScratchImage::OverrideFormat(DXGI_FORMAT f)
|
|
{
|
|
if (!m_image)
|
|
return false;
|
|
|
|
if (!IsValid(f) || IsPlanar(f) || IsPalettized(f))
|
|
return false;
|
|
|
|
for (size_t index = 0; index < m_nimages; ++index)
|
|
{
|
|
m_image[index].format = f;
|
|
}
|
|
|
|
m_metadata.format = f;
|
|
|
|
return true;
|
|
}
|
|
|
|
_Use_decl_annotations_
|
|
const Image* ScratchImage::GetImage(size_t mip, size_t item, size_t slice) const
|
|
{
|
|
if (mip >= m_metadata.mipLevels)
|
|
return nullptr;
|
|
|
|
size_t index = 0;
|
|
|
|
switch (m_metadata.dimension)
|
|
{
|
|
case TEX_DIMENSION_TEXTURE1D:
|
|
case TEX_DIMENSION_TEXTURE2D:
|
|
if (slice > 0)
|
|
return nullptr;
|
|
|
|
if (item >= m_metadata.arraySize)
|
|
return nullptr;
|
|
|
|
index = item*(m_metadata.mipLevels) + mip;
|
|
break;
|
|
|
|
case TEX_DIMENSION_TEXTURE3D:
|
|
if (item > 0)
|
|
{
|
|
// No support for arrays of volumes
|
|
return nullptr;
|
|
}
|
|
else
|
|
{
|
|
size_t d = m_metadata.depth;
|
|
|
|
for (size_t level = 0; level < mip; ++level)
|
|
{
|
|
index += d;
|
|
if (d > 1)
|
|
d >>= 1;
|
|
}
|
|
|
|
if (slice >= d)
|
|
return nullptr;
|
|
|
|
index += slice;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return nullptr;
|
|
}
|
|
|
|
return &m_image[index];
|
|
}
|
|
|
|
bool ScratchImage::IsAlphaAllOpaque() const
|
|
{
|
|
if (!m_image)
|
|
return false;
|
|
|
|
if (!HasAlpha(m_metadata.format))
|
|
return true;
|
|
|
|
if (IsCompressed(m_metadata.format))
|
|
{
|
|
for (size_t index = 0; index < m_nimages; ++index)
|
|
{
|
|
if (!_IsAlphaAllOpaqueBC(m_image[index]))
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ScopedAlignedArrayXMVECTOR scanline(static_cast<XMVECTOR*>(_aligned_malloc((sizeof(XMVECTOR)*m_metadata.width), 16)));
|
|
if (!scanline)
|
|
return false;
|
|
|
|
static const XMVECTORF32 threshold = { { { 0.997f, 0.997f, 0.997f, 0.997f } } };
|
|
|
|
for (size_t index = 0; index < m_nimages; ++index)
|
|
{
|
|
#pragma warning( suppress : 6011 )
|
|
const Image& img = m_image[index];
|
|
|
|
const uint8_t *pPixels = img.pixels;
|
|
assert(pPixels);
|
|
|
|
for (size_t h = 0; h < img.height; ++h)
|
|
{
|
|
if (!_LoadScanline(scanline.get(), img.width, pPixels, img.rowPitch, img.format))
|
|
return false;
|
|
|
|
const XMVECTOR* ptr = scanline.get();
|
|
for (size_t w = 0; w < img.width; ++w)
|
|
{
|
|
XMVECTOR alpha = XMVectorSplatW(*ptr);
|
|
if (XMVector4Less(alpha, threshold))
|
|
return false;
|
|
++ptr;
|
|
}
|
|
|
|
pPixels += img.rowPitch;
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|